Lawinenlagebericht

Jasper

Dec 20 – 21, 2011Parks Canada
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Archiviert · abgelaufen 15 years ago

Lawinengefahr

Tue
Wed
Hochgebirge
3 · Erheblich
Waldgrenze
4 · Gross
Unterhalb
2 · Mässig
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Kernpunkte

Strong to extreme winds coupled with warm temperatures are creating hard, easily-triggered windslabs in most treeline lee features as well as pockets of the alpine that are sheltered enough to hold snow.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    1–3
    Windslabs have formed in sheltered lee features at Treeline and protected pockets in the Alpine.

  • Storm Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    1–2
    Anywhere from 5-35cm of new snow fell Saturday evening. Warm temperatures and winds have stiffened the storm snow into a more cohesive soft slab layer. Some pockets of soft slab may release from skier presence.

  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    2–3
    Basal facet collapses are still being noted in test pits below midpack bridging layers. Shallow snowpack areas and rocky outcrops are likely trigger locations.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Wind effect is extremely variable

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